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/*
Copyright (C) 2011 Sebastian Pancratz
This file is part of FLINT.
FLINT is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version. See <https://www.gnu.org/licenses/>.
*/
#include "fmpz_vec.h"
#include "fmpz_mat.h"
#include "padic_poly.h"
#include "padic_mat.h"
static void
_padic_mat_canonicalise_fmpz(fmpz *vec, slong len, slong *val, const fmpz_t p)
{
int nonzero = 0;
slong i;
for (i = 0; i < len; i++)
{
if (vec[i] != WORD(0))
{
nonzero = 1;
if (!fmpz_divisible(vec + i, p))
{
return;
}
}
}
if (nonzero)
{
_fmpz_vec_scalar_divexact_fmpz(vec, vec, len, p);
(*val)++;
while (1)
{
for (i = 0; i < len; i++)
{
if (!fmpz_divisible(vec + i, p))
{
return;
}
}
_fmpz_vec_scalar_divexact_fmpz(vec, vec, len, p);
(*val)++;
}
}
else
{
*val = 0;
}
}
static void
_padic_mat_canonicalise_si(fmpz *vec, slong len, slong *val, slong p)
{
int nonzero = 0;
slong i;
for (i = 0; i < len; i++)
{
if (vec[i] != WORD(0))
{
nonzero = 1;
if (!fmpz_divisible_si(vec + i, p))
{
return;
}
}
}
if (nonzero)
{
_fmpz_vec_scalar_divexact_ui(vec, vec, len, p);
(*val)++;
while (1)
{
for (i = 0; i < len; i++)
{
if (!fmpz_divisible_si(vec + i, p))
{
return;
}
}
_fmpz_vec_scalar_divexact_ui(vec, vec, len, p);
(*val)++;
}
}
else
{
*val = 0;
}
}
void _padic_mat_canonicalise(padic_mat_t A, const padic_ctx_t ctx)
{
if (COEFF_IS_MPZ(*(ctx->p)))
{
_padic_mat_canonicalise_fmpz(padic_mat(A)->entries,
padic_mat(A)->r * padic_mat(A)->c,
&(A->val), ctx->p);
}
else
{
_padic_mat_canonicalise_si(padic_mat(A)->entries,
padic_mat(A)->r * padic_mat(A)->c,
&(A->val), *(ctx->p));
}
}